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Browser viewer: Fix page turn not working on chrome for android at file boundaries

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Apparently chrome has started returning fractional numbers for scroll
position
This commit is contained in:
Kovid Goyal 2019-10-01 10:03:48 +05:30
parent 5782bf76c7
commit b23b1adcf1
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GPG Key ID: 06BC317B515ACE7C
1 changed files with 5 additions and 4 deletions
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9
src/pyj/read_book/paged_mode.pyj
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@ -292,7 +292,7 @@ def next_screen_location():
if limit < col_and_gap:
return -1
if ans > limit:
ans = limit if current_scroll_offset() < limit else -1
ans = limit if Math.ceil(current_scroll_offset()) < limit else -1
return ans
def previous_screen_location():
@ -317,8 +317,9 @@ def next_col_location():
cc = current_column_location()
ans = cc + col_and_gap
limit = scroll_viewport.paged_content_width() - scroll_viewport.width()
# print(f'cc={cc} col_and_gap={col_and_gap} ans={ans} limit={limit} content_width={scroll_viewport.paged_content_width()} vw={scroll_viewport.width()} current_scroll_offset={current_scroll_offset()}')
if ans > limit:
ans = limit if current_scroll_offset() < limit else -1
ans = limit if Math.ceil(current_scroll_offset()) < limit else -1
return ans
def previous_col_location():
@ -330,7 +331,7 @@ def previous_col_location():
cc = current_column_location()
ans = cc - col_and_gap
if ans < 0:
ans = 0 if current_scroll_offset() > 0 else -1
ans = 0 if Math.floor(current_scroll_offset()) > 0 else -1
return ans
def jump_to_anchor(name):
@ -413,7 +414,7 @@ def current_cfi():
while cury < scroll_viewport.height():
curx = left
while curx < right - gap:
cfi = cfi_at_point(curx-current_scroll_offset(), cury-window.pageYOffset)
cfi = cfi_at_point(curx-Math.ceil(current_scroll_offset()), cury-Math.ceil(window.pageYOffset))
if cfi:
# print('Viewport cfi:', cfi)
return cfi